US2604755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined gas and steam turbine plant using burner in gas turbine exhaust to heat steam
Assignee: De Laval Steam Turbine Co
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Filing: 1949-07-07
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Granted: 1952-07-29
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Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Nordstrom Vilhelm Fredri Andre
- 👤 Andrejevitch Dimitrij
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:53
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F01K23/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |